CN103884344B - Intelligent navigation method and system based on mass vehicle data - Google Patents
Intelligent navigation method and system based on mass vehicle data Download PDFInfo
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- CN103884344B CN103884344B CN201410127234.2A CN201410127234A CN103884344B CN 103884344 B CN103884344 B CN 103884344B CN 201410127234 A CN201410127234 A CN 201410127234A CN 103884344 B CN103884344 B CN 103884344B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
- G01C21/3492—Special cost functions, i.e. other than distance or default speed limit of road segments employing speed data or traffic data, e.g. real-time or historical
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096805—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route
- G08G1/096811—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route where the route is computed offboard
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Abstract
The invention discloses an intelligent navigation method and system based on mass vehicle data. The system comprises a plurality of vehicle-mounted navigation terminals (100), a road traffic network (300) and a vehicle monitoring center (200) which is connected with the road traffic network (300) and is in wireless communication with the plurality of vehicle-mounted navigation terminals (100) respectively, wherein each vehicle-mounted navigation terminal (100) sends a driving path query request containing vehicle location and navigation destination to the vehicle monitoring center (200) when receiving a navigation instruction input from outside, and the vehicle monitoring center (200) is used for calculating one driving path through an optimal driving path computation formula according to the monitored basic road traffic condition of a region in which a monitored vehicle is located and real-time traffic broadcast messages from the road traffic network (300), and the driving path, as an optimal driving path, is sent to the vehicle-mounted navigation terminal (100) requiring navigation service from the vehicle monitoring center (200).
Description
Technical field
A kind of the present invention relates to technical field of vehicle navigation, more particularly, it relates to intelligence based on magnanimity vehicle data
Change air navigation aid and navigation system.
Background technology
The intelligence degree of existing automatic navigator not high it is impossible to carry for driver with reference to real-time road traffic situation
For intelligent navigation service.This automatic navigator can only be according to the navigation starting point that driver inputs on navigation interface and the terminal that navigates
Calculate a shortest driving path for driver, and provide the user navigation Service according to this shortest driving path, to shorten
The time that user consumes on road.The shortcoming of existing automatic navigator is: when automatic navigator is provided by driver
The local section of the shortest driving path congestion, or the local of this shortest driving path occur because vehicle flowrate is larger
Road traffic accident in section, or when the road conditions in the local section of this shortest driving path are quite bad, driver
The time being consumed on this shortest path will greatly increase so that this automatic navigator the shortest is driven for what driver provided
Sailing path becomes a time-consuming driving path the longest on the contrary, and highly impacts the driving impression of user.Therefore, in city
The road traffics such as area prosperity section, the effect that the navigation feature of existing automatic navigator is played is little, this automatic navigator
The navigation way providing for driver only has reference significance.
Therefore, how to develop a can in conjunction with real-time road traffic broadcast message for driver provide intelligent navigation service
Navigation system has become problem demanding prompt solution.
Content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, provides one kind to be based on magnanimity car
The intelligent air navigation aid of data and navigation system.
The technical solution adopted for the present invention to solve the technical problems is: constructs a kind of intelligence based on magnanimity vehicle data
Change air navigation aid, comprise the steps:
S1) when receiving the navigation instruction by outside input, generate and comprise current vehicle position and navigation purpose ground
Driving path inquiry request information, and this driving path inquiry request information is sent to vehicle monitoring center；
S2) navigation starting point and navigation terminal are determined according to described driving path inquiry request information, and combine and monitor
The elementary path traffic of monitoring vehicle region and the real-time road traffic broadcast message from road traffic net calculate
Monitoring vehicle is driven for accumulative time-consuming the shortest one all feasible driving path from this current location to this navigation purpose ground
Sail path, and this accumulative time-consuming driving path the shortest is issued to in described vehicle monitoring as optimum driving path
The heart asks at least one vehicle mounted guidance terminal of navigation Service；
S3) pass through this at least one vehicle mounted guidance terminal to receive and show this optimum drive path, and most preferably driven according to this
Sail path and Voice Navigation is carried out to monitoring vehicle.
The present invention above-mentioned based in the intelligent air navigation aid of magnanimity vehicle data, also included before described step s1
Following steps:
S01) gather one group respectively by each vehicle mounted guidance terminal and comprise vehicle essential information, speed, vehicle heading
And the vehicle data of vehicle location, the vehicle data collecting timing is uploaded to vehicle monitoring center；Vehicle monitoring Central Radical
According to the multigroup vehicle data collected, the road traffic condition of its monitor area is estimated, obtains elementary path traffic
Information；
S02 the multigroup vehicle data) collected according to this reference road grading standard sets up vehicle and road
Can corresponding table.
The present invention above-mentioned based in the intelligent air navigation aid of magnanimity vehicle data, in described step s1 and described step
Also comprise the steps: s12 between s2) obtain the real-time road traffic broadcast message being derived from road traffic net.
The present invention above-mentioned based in the intelligent air navigation aid of magnanimity vehicle data, calculate in described step s2 time-consuming
The method of short optimum driving path includes following sub-step:
S21) open vehicle monitoring map, monitoring vehicle is searched on this vehicle monitoring map from current location to navigation mesh
Ground all feasible driving path, by every feasible driving path node；
S22) monitoring vehicle is calculated according to optimum driving path computing formula tired on each feasible driving path
Meter is time-consuming；
S23) judge an accumulative time-consuming the shortest driving path in this all feasible driving path, this is driven road
Footpath is defined as optimum driving path.
The present invention above-mentioned based in the intelligent air navigation aid of magnanimity vehicle data, optimum described in described step s22
The computing formula of driving path is as follows:
(1) t=s/v+n/s+a*r；
(2) t=t1+t2+ ...+tn+ ...;
Wherein, t represents all nodes that all feasible paths from current location to navigation purpose ground are comprised and monitors
Road between two adjacent sections point for the vehicle time-consuming；Described node represents road river conjunction；
S represents the overall length of the road that two adjacent sections point is formed；
V represents monitoring average speed on this road for the vehicle；
N represents this road vehicle sum；
A is variable；
R represents the category of roads of this road；
T represents that monitoring vehicle is accumulative time-consuming on any one feasible path；
Tn represents monitoring road between a certain node n of any one feasible path is to next node (n+1) for the vehicle
On time-consuming.
The present invention above-mentioned based in the intelligent air navigation aid of magnanimity vehicle data, also wrap after described step s23
Include following steps: s24) as judged that monitoring vehicle reaches new node by the vehicle data from vehicle mounted guidance terminal when, then
It is new navigation starting point with this new node, and repeated execution of steps s21, to step s23, generates a new optimum driving road
Footpath.
The present invention above-mentioned based in the intelligent air navigation aid of magnanimity vehicle data, step s3 also includes: this is new
Optimum driving path substitutes former optimum driving path, carries out Voice Navigation according to this new optimum driving path to monitoring vehicle,
And send the voice message of optimum driving path change.
The present invention also constructs a kind of intelligent navigation system based on magnanimity vehicle data, including at least one vehicle mounted guidance
Terminal, road traffic net, it is linked into described road traffic net and sets up radio communication respectively with the plurality of vehicle mounted guidance terminal
Vehicle monitoring center；
When at least one vehicle mounted guidance terminal described is used for receiving the navigation instruction by outside input, to described vehicle prison
Control center sends the vehicle drive path query solicited message comprising vehicle position data and navigation purpose ground；
Described vehicle monitoring center is used for determining navigation starting point and navigation eventually according to described driving path inquiry request information
Point, and combine the elementary path traffic of monitoring vehicle region monitoring and the real-time road from road traffic net
Road Traffic Announcement information calculates tired all feasible driving path from this current location to this navigation purpose ground for the monitoring vehicle
The time-consuming the shortest driving path of meter, and this accumulative time-consuming driving path the shortest is issued to as optimum driving path
To at least one vehicle mounted guidance terminal of described vehicle monitoring center requests navigation Service；
At least one vehicle mounted guidance terminal described be additionally operable to receive and show described optimum drive path, and according to described
Good driving path carries out Voice Navigation to monitoring vehicle.
The present invention above-mentioned based in the intelligent navigation system of magnanimity vehicle data, each described vehicle mounted guidance terminal is equal
The gps module that electrically connects with a described cpu including a cpu, the first input module, the first wireless signal transceiver module, raise
Sound device module and the first display screen；
Described gps module is used for being communicated with satellite, obtains and comprises vehicle position information, speed, vehicle heading
Vehicle data, and described vehicle data is input to a described cpu；
It is button inputted by described first display screen or vehicle centre console that described first input module is used for receive user
Comprise the navigation instruction on navigation purpose ground, and described navigation instruction is sent to a described cpu；
When a described cpu is used for receiving described vehicle data and described navigation instruction, generate comprise vehicle location and
The driving path inquiry request information on navigation purpose ground；
Described first wireless signal transceiver module is used under the control of a described cpu, and described driving path is inquired about
Solicited message is sent to described vehicle monitoring center.
The present invention above-mentioned based in the intelligent navigation system of magnanimity vehicle data, described vehicle monitoring center includes
The second input module that two cpu are electrically connected with described 2nd cpu, second wireless singal transceiver module, memory module and
Second display screen；
Described second input module is used for receiving the real-time road traffic broadcast message from road traffic net；
The driving path inquiry that described second wireless singal transceiver module is used for receiving from described vehicle mounted guidance terminal please
Seek information, this driving path inquiry request information is sent to described 2nd cpu；
Described second display screen is used for showing vehicle monitoring map；
Described memory module is used for storing vehicle table corresponding with road performance；
Described 2nd cpu is used for extracting the vehicle position data in this driving path inquiry request information and navigation purpose ground
Information, reads the vehicle table corresponding with road performance of storage in described memory module, and according to optimum driving path computing formula
Calculate in the monitoring vehicle all feasible driving path on ground from current location to navigation purpose under described vehicle monitoring map
An accumulative time-consuming the shortest optimum driving path；
Described second wireless singal transceiver module is additionally operable to be sent to this optimum driving path and supervises to described vehicle
At least one vehicle mounted guidance terminal of control center requests navigation Service；
At least one vehicle mounted guidance terminal described is additionally operable to receive this by described first wireless signal transceiver module
Excellent driving path, and this optimum driving path is shown by described first display screen.
Because the intelligent air navigation aid based on magnanimity vehicle data for the present invention and navigation system employ in vehicle monitoring
In in the heart built-in based on the shortest accumulative time-consuming optimum driving path computing formula, and road friendship is accessed at vehicle monitoring center
The technical scheme of logical net, so overcome automatic navigator of the prior art can only simply calculate by leading that driver inputs
The shortest navigation way between boat starting point and navigation terminal, and None- identified and evade the local congestion on this shortest navigation way
The road traffic burst accident of section or appearance, causes driver's taking on this shortest navigation way cannot be guaranteed
Defect it is achieved that improve onboard navigation system navigation efficiency, significantly shorten driver driving navigation procedure in
Time-consuming beneficial effect.
Brief description
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural frames of the intelligent navigation system based on magnanimity vehicle data that present pre-ferred embodiments provide
Figure；
Fig. 2 is the knot of the arbitrary vehicle mounted guidance terminal of the intelligent navigation system based on magnanimity vehicle data shown in Fig. 1
Structure block diagram；
Fig. 3 is the structural frames at the vehicle monitoring center of the intelligent navigation system based on magnanimity vehicle data shown in Fig. 1
Figure；
Fig. 4 is the flow process of the intelligent air navigation aid based on magnanimity vehicle data that better embodiment of the present invention provides
Figure.
Specific embodiment
In order to solve automatic navigator present in prior art can only simply calculate navigation starting point to navigate terminal it
Between the shortest navigation way, and None- identified and evade congested link on this shortest navigation way or road traffic burst thing
Therefore, causing reality on the shortest drive route that automatic navigator is provided for the human pilot to take cannot guaranteed lack
Fall into, the innovative point of the present invention is: 1) vehicle monitoring center 200 is accessed road traffic net 300；2) vehicle monitoring center 200
Receive vehicle mounted guidance terminal 100 driving path Query Information when, by optimum driving path computing formula calculate monitoring vehicle
From all feasible navigation way of navigation starting point to navigation terminal, an accumulative time-consuming the shortest driving path, this is driven
Sail path and be issued to vehicle mounted guidance terminal 100 as optimum driving path；3) in the navigation procedure of monitoring vehicle, vehicle monitoring
Center 200 can carry out monitor in real time to the wheelpath of monitoring vehicle, and is judging that monitoring vehicle reaches new road river conjunction
When, using this new road river conjunction as new navigation starting point, using former navigation terminal as new navigation terminal, with reference to from road
The real-time road traffic broadcast message of the road network of communication lines 300, calculates a new optimum by optimum driving path computing formula and drives
Sail path, and make vehicle mounted guidance terminal 100 carry out Voice Navigation according to this new optimum driving path to monitoring vehicle.
The design of road traffic net 300 is accessed at vehicle monitoring center 200 and employ due to present invention employs
The built-in design based on the shortest accumulative time-consuming optimum driving path computing formula in vehicle monitoring center 200, so solve
Automatic navigator of the prior art can only simply calculate navigation starting point to the shortest navigation way navigating between terminal, and no
Method identify and evade local congested link on this shortest navigation way or road traffic burst accident technical problem it is achieved that
The mode of road traffic net 300 network node is calculated optimum driving path, and by dynamic from road traffic net 300
Road traffic broadcast message is constantly optimized to this optimum guidance path and adjusts, and to improve onboard navigation system with this
Navigation efficiency, significantly shorten human pilot driving navigation procedure in time-consuming purpose.
In order that the purpose of the present invention becomes more apparent, below in conjunction with drawings and Examples, the present invention is entered with traveling one
Step describes in detail.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit this
Bright.
As shown in figure 1, the present invention includes multiple vehicle mounted guidance terminals based on the intelligent navigation system of magnanimity vehicle data
100 and the plurality of vehicle mounted guidance terminal 100 set up radio communication vehicle monitoring center 200 and with this vehicle monitoring center
The 200 road traffic nets 300 setting up communication connection.
Each vehicle mounted guidance terminal 100 is used to receive user is led by the first display screen 104 or vehicle centre console
Navigate button inputted navigation instruction when, send to vehicle monitoring center 200 comprise vehicle location and navigation purpose ground vehicle drive
Sail path query request.
Vehicle monitoring center 200 is used for the elementary path traffic according to the monitoring vehicle region monitoring, and
The vehicle meter corresponding with road performance prestoring from real-time road traffic broadcast message the reference of road traffic net 200 is calculated
This monitoring vehicle is driven for accumulative time-consuming the shortest one all feasible driving path from its current location to navigation purpose ground
Sail path, this driving path is issued to vehicle mounted guidance terminal 100 as optimum driving path.
This vehicle mounted guidance terminal 100 is additionally operable to the optimum drive path receiving and showing from vehicle monitoring center 200, root
There is provided Voice Navigation service according to this optimum drive path for driver.
As shown in Fig. 2 each vehicle mounted guidance terminal 100 all includes a cpu101 and cpu101 electricity respectively
Connect the first wireless signal transceiver module 102, the first input module 103, the first display screen 104, loudspeaker module 105 and
Gps module 106.This first display screen 104 is used for showing vehicle mounted guidance interface.This gps module 106 is used for being led to satellite
Letter, obtains the vehicle data comprising vehicle location, speed, vehicle heading, the vehicle data getting is input to first
cpu101.It is defeated by the navigation button of the first display screen 104 or vehicle centre console that this first input module 103 is used for receive user
The navigation instruction entering, this navigation instruction is input to a cpu101.The navigation that first cpu101 is used for receiving user refers to
When making, generate driving path Query Information.This first wireless signal transceiver module 102102 is used for receiving driving of a cpu101
Sail path query information, and the driving path Query Information comprising vehicle location and navigation purpose ground is sent to the vehicle of far-end
Surveillance center 200.
Wherein, this first wireless signal transceiver can be the existing wireless signal transmitting-receiving being integrated in automatic navigator
Device.
As shown in figure 3, vehicle monitoring center 200 include that the 2nd cpu201 electrically connected with the 2nd cpu201 second defeated
Enter module 205, second wireless singal transceiver module 202, second display screen 203 and memory module 204.
This second input module 205 is used for receiving the real-time road traffic broadcast message from road traffic net 300, should
The real-time road traffic broadcast message receiving is input to the 2nd cpu201.
This second wireless singal transceiver module 202 is used for multigroup car that timing receipt is derived from multiple vehicle mounted guidance terminals 100
Data, and receive the driving path Query Information from arbitrary vehicle mounted guidance terminal 100, by this driving path Query Information
It is sent to the 2nd cpu201.
Vehicle monitoring center 200 based on multigroup vehicle data that second wireless singal transceiver module 202 is collected and can be joined
Examine the category of roads criteria for classifying, vehicle table corresponding with road performance is set up by the 2nd cpu201, and by vehicle and road performance
Corresponding table stores memory module 204.
2nd cpu201 is additionally operable to extract the vehicle position data in this driving path inquiry request and navigation purpose ground
Information, reads the vehicle table corresponding with road performance of this memory module 204 storage, and based on receiving from road traffic net
200 real-time road traffic broadcast message, calculates monitoring vehicle from current location to leading by optimum driving path computing formula
Accumulative time-consuming optimum driving path the shortest in all feasible driving path of boat destination.
This second wireless singal transceiver module 202 is additionally operable to receive the optimum driving path of the 2nd cpu201 input, should
Bar optimum driving path is sent to the vehicle mounted guidance terminal asking navigation Service to vehicle monitoring center 200 by wireless network
100.
Wherein, this vehicle monitoring center 200 can be the vehicle monitoring server based on car networking.This second wireless singal
Transceiver module 202 can be the wireless network card of server.
Below by taking the better embodiment of the present invention as a example, the present invention is navigated based on the intellectuality of magnanimity vehicle data
Method illustrates:
In step s101, multigroup vehicle number is collected by second wireless singal transceiver module 202 in vehicle monitoring center 200
According to, the vehicle essential information being comprised according to this multigroup vehicle data, with reference to the category of roads criteria for classifying set up vehicle with
Road performance corresponds to table, and corresponding with road performance for this vehicle table is stored in memory module 204.
In step s102, vehicle monitoring map is opened at vehicle monitoring center 200, is received by the second input module 205
Real-time road traffic broadcast message from road traffic net 300.
In step s103, user passes through the navigation menu key input navigation on the first display screen 104 or vehicle centre console
Instruction, vehicle mounted guidance terminal 100 passes through the navigation instruction of the first input module 103 receive user, is generated by a cpu101
Driving path Query Information, and vehicle position data and navigation purpose ground will be comprised by the first wireless signal transceiver module 102
The driving path Query Information of information is sent to vehicle monitoring center 200.
In step s104, second wireless singal transceiver module 202 receives the driving path of this vehicle mounted guidance terminal 100
Query Information, this driving path Query Information is input to the 2nd cpu201.2nd cpu201 reads in memory module 204 and deposits
The vehicle table corresponding with road performance of storage, calculates monitoring vehicle from current location to navigation by optimum driving path computing formula
In all feasible paths of destination, time-consuming driving path the shortest, using this driving path as optimum driving path, and passes through
This optimum driving path is sent to navigation circle of the first display screen 104 of vehicle mounted guidance terminal 100 by the second wireless communication module
Shown on face.
In step s104, the lookup method of optimum driving path comprises the following steps:
S1) monitoring vehicle is searched automatically from current location to navigation mesh on vehicle monitoring map in vehicle monitoring center 200
Ground all feasible driving path, by each feasible driving path node；
S2) the 2nd cpu201 calculates monitoring vehicle on each article of feasible driving road according to optimum driving path computing formula
Accumulative time-consuming on footpath；
S3) the 2nd cpu201 judges accumulative time-consuming driving path the shortest in this all feasible driving path, by this
Driving path is as optimum driving path.
This optimum driving path computing formula is as follows:
(1) t=s/v+n/s+a*r；
(2) t=t1+t2+ ...+tn+ ...;
Wherein, t represents monitoring vehicle whole sections that all feasible paths on ground are comprised from current location to navigation purpose
In point, monitoring vehicle is time-consuming needed for a node reaches next node adjacent thereto；Described in the present embodiment, node refers to
It is the river conjunction in two road；
S represents the overall length of the road that two adjacent sections point is formed；
V represents monitoring average speed on this road for the vehicle；
N represents this road vehicle sum；
A is variable；
R represents the category of roads of this road；
T represents that monitoring vehicle is accumulative time-consuming on any one feasible path；
Tn represents time-consuming on monitoring road between the node n of any one feasible path is to node (n+1) for the vehicle.
The distance of the road that hypothesis two adjacent sections point is formed is 50m, monitors average speed on this road for the vehicle
For 2m/s, this road vehicle is total to be 100, and the category of roads of this road is 2 grades, and a is 2, then monitoring vehicle exists
This t=s/v+n/s+a*r=(50/2+100/50+2*2) s=31s.
It should be strongly noted that due to time-consuming t on any one road for the vehicle and link length, speed, road
On vehicle fleet (i.e. the road is clear degree), category of roads related, in the present invention, t is only used for abstractively weighing monitoring car
Time being consumed on the road between two adjacent nodes, t is only used for abstractively weighing monitoring vehicle feasible in a certain bar
Driving path on accumulative time-consuming, in order to the intelligent navigation system based on magnanimity vehicle data for the present invention in starting point of navigating
Screen optimum driving path to a plurality of feasible driving path of navigation terminal.T not this monitoring vehicle on this road
Reality take, t reality on any one feasible driving path for the non-supervised vehicle take.
In step s105, the vehicle data that timing receipt this vehicle mounted guidance terminal 100 in vehicle monitoring center 200 uploads,
Judge that this vehicle does not reach next node according to the vehicle position information in this vehicle data, continue according to this optimum navigation road
Footpath carries out Voice Navigation to driver.
In step s105, vehicle monitoring center 200 judges prison according to the vehicle data that this vehicle mounted guidance terminal 100 uploads
Control vehicle reaches next node.
In step s106, vehicle mounted guidance terminal 100 using this new node as new navigation starting point, by former navigation purpose
Ground, as new navigation purpose ground, with reference to the real-time road traffic broadcast message from road traffic net 300, is driven according to optimum
Path computing formula calculates this monitoring vehicle and consumes from all feasible paths of this new navigation starting point navigation terminal new to this
When the shortest driving path, using this driving path as new optimum driving path, by secondary signal transceiver module, this is new
Optimum driving path be issued to vehicle mounted guidance terminal 100.
In step s107, this vehicle mounted guidance terminal 100 passes through the first wireless signal transceiver module 102 reception, and this is new
Excellent driving path, and by a cpu101, this new optimum driving path is exported to the navigation interface of the first display screen 104
On shown, with cover former optimum driving path.Meanwhile, a cpu101 sends optimum driving to loudspeaker module 105
Route diversion control signal.After loudspeaker module 105 receives this control signal, send optimum driving path change to driver
Voice message, is adjusted to vehicle heading according to this voice message in order to driver, to shorten vehicle-mounted leading further
Boat is whole accumulative time-consuming.
In sum, the intelligent navigation system based on magnanimity vehicle data for the present invention can receive each car by wireless network
Carry the driving path Query Information of navigation terminal 100, prison is searched in vehicle monitoring map according to this driving path Query Information
Control vehicle is from current location to all feasible driving path of navigation terminal and accumulative time-consuming the shortest one in therefrom screening
Optimum driving path, this optimum driving path is issued to vehicle mounted guidance terminal 100, makes vehicle mounted guidance terminal 100 according to this
Excellent driving path carries out Voice Navigation to human pilot.
In the present invention based in the intelligent navigation system of magnanimity vehicle data, vehicle monitoring center 200 also can regularly connect
Receive the vehicle data of vehicle mounted guidance terminal 100, by the vehicle data collected, the wheelpath of monitoring vehicle is supervised in real time
Control, and when judging that monitoring vehicle reaches new road river conjunction, wide in conjunction with the real-time road traffic from road traffic net 300
Information of broadcasting generates a new optimum driving path, this new optimum driving path is issued to vehicle mounted guidance terminal 100, makes
Vehicle mounted guidance terminal 100 carries out Voice Navigation according to this new driving path to human pilot, to evade former optimum driving path
On the burst vehicle accident that is likely to occur or congested link, thus constantly shortening the time that human pilot on the way consumes, really
Protect human pilot and complete vehicle mounted guidance process within the time the shortest.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of intelligent air navigation aid based on magnanimity vehicle data is it is characterised in that comprise the steps:
S1) when receiving the navigation instruction by outside input, generate the driving comprising current vehicle position and navigation purpose ground
Path query solicited message, and this driving path inquiry request information is sent to vehicle monitoring center (200)；
S2) navigation starting point and navigation terminal are determined according to described driving path inquiry request information, and combine the monitoring monitoring
The elementary path traffic of vehicle region and the real-time road traffic broadcast message meter from road traffic net (300)
Calculate all feasible driving path from this current location to this navigation purpose ground for the monitoring vehicle and add up to take the shortest one
Driving path, and this accumulative time-consuming driving path the shortest is issued to described vehicle monitoring as optimum driving path
At least one vehicle mounted guidance terminal (100) of navigation Service is asked at center (200)；
S3) pass through this at least one vehicle mounted guidance terminal (100) to receive and show this optimum driving path, and driven according to this optimum
Sail path and Voice Navigation is carried out to monitoring vehicle；
Also comprised the steps: before described step s1
S01) gather one group respectively by each vehicle mounted guidance terminal (100) and comprise vehicle essential information, speed, vehicle heading
And the vehicle data of vehicle location, the vehicle data collecting timing is uploaded to vehicle monitoring center (200)；In vehicle monitoring
The heart (200) is estimated to the road traffic condition of its monitor area according to the multigroup vehicle data collected, and obtains basic road
Road traffic related information；
S02 the multigroup vehicle data) collected according to this reference road grading standard sets up vehicle and road performance pair
Answer table.
2. the intelligent air navigation aid based on magnanimity vehicle data according to claim 1 is it is characterised in that in described step
Suddenly also comprise the steps: s12 between s1 and described step s2) obtain the real-time road traffic being derived from road traffic net (300)
Broadcast message.
3. the intelligent air navigation aid based on magnanimity vehicle data according to claim 1 is it is characterised in that described step
The method calculating time-consuming optimum driving path the shortest in s2 includes following sub-step:
S21) open vehicle monitoring map, on this vehicle monitoring map search monitoring vehicle from current location to navigation purpose ground
All feasible driving path, by every feasible driving path node；
S22) monitoring accumulative consumption on each feasible driving path for the vehicle is calculated according to optimum driving path computing formula
When；
S23) judge an accumulative time-consuming the shortest driving path in this all feasible driving path, this driving path is fixed
Justice is optimum driving path.
4. the intelligent air navigation aid based on magnanimity vehicle data according to claim 3 is it is characterised in that described step
Described in s22, the computing formula of optimum driving path is as follows:
(1) t=s/v+n/s+a*r；
(2) t=t1+t2+ ...+tn+ ...；
Wherein, t represents monitoring vehicle all nodes that all feasible paths from current location to navigation purpose ground are comprised
Road between two adjacent sections point time-consuming；Described node represents road river conjunction；
S represents the overall length of the road that two adjacent sections point is formed；
V represents monitoring average speed on this road for the vehicle；
N represents this road vehicle sum；
A is variable；
R represents the category of roads of this road；
T represents that monitoring vehicle is accumulative time-consuming on any one feasible path；
Tn represents on monitoring road between a certain node n of any one feasible path is to next node (n+1) for the vehicle
Time-consuming.
5. the intelligent air navigation aid based on magnanimity vehicle data according to claim 3 is it is characterised in that in described step
Also comprise the steps: s24 after rapid s23) as monitoring vehicle is judged by the vehicle data from vehicle mounted guidance terminal (100)
When reaching new node, then it is new navigation starting point with this new node, and repeated execution of steps s21, to step s23, generates one
The new optimum driving path of bar.
6. the intelligent air navigation aid based on magnanimity vehicle data according to claim 5 it is characterised in that step s3 also
Including: this new optimum driving path is substituted former optimum driving path, according to this new optimum driving path to monitoring vehicle
Carry out Voice Navigation, and send the voice message of optimum driving path change.
7. a kind of intelligent navigation system based on magnanimity vehicle data is it is characterised in that include at least one vehicle mounted guidance eventually
End (100), road traffic net (300), be linked into described road traffic net (300) and with multiple described vehicle mounted guidance terminals
(100) set up the vehicle monitoring center (200) of radio communication respectively；
When described at least one vehicle mounted guidance terminal (100) is used for receiving the navigation instruction by outside input, to described vehicle
Surveillance center (200) sends the vehicle drive path query solicited message comprising current vehicle position and navigation purpose ground；
Described vehicle monitoring center (200) is used for determining navigation starting point and navigation eventually according to described driving path inquiry request information
Point, and combine the elementary path traffic of monitoring vehicle region monitoring and the reality from road traffic net (300)
When road traffic broadcast message calculate all feasible driving path on monitoring vehicle ground from this current location to this navigation purpose
In an accumulative time-consuming the shortest driving path, and using this accumulative time-consuming driving path the shortest as under optimum driving path
It is dealt at least one vehicle mounted guidance terminal (100) asking navigation Service to described vehicle monitoring center (200)；
Described at least one vehicle mounted guidance terminal (100) is additionally operable to receive and show described optimum driving path, and according to described
Optimum driving path carries out Voice Navigation to monitoring vehicle；
Described vehicle monitoring center (200) includes second that the 2nd cpu (201) and described 2nd cpu (201) is electrically connected
Input module (205), second wireless singal transceiver module (202), memory module (204) and second display screen (203)；Described
Second input module (205) is used for receiving the real-time road traffic broadcast message from road traffic net (300)；
Described second wireless singal transceiver module (202) is used for receiving the driving path from described vehicle mounted guidance terminal (100)
Inquiry request information, this driving path inquiry request information is sent to described 2nd cpu (201)；
Described second display screen (203) is used for showing vehicle monitoring map；Described memory module (204) is used for storing vehicle and road
Road performance corresponds to table；
Described 2nd cpu (201) is used for extracting vehicle position data and the navigation purpose in this driving path inquiry request information
Ground information, reads the vehicle table corresponding with road performance of storage in described memory module (204), and according to optimum driving path meter
Calculate all feasible driving that formula calculates the monitoring vehicle ground from current location to navigation purpose under described vehicle monitoring map
An accumulative time-consuming the shortest optimum driving path in path；
Described second wireless singal transceiver module (202) is additionally operable to be sent to this optimum driving path and supervises to described vehicle
At least one vehicle mounted guidance terminal (100) of navigation Service is asked at control center (200).
8. the intelligent navigation system based on magnanimity vehicle data according to claim 7 is it is characterised in that each described
Vehicle mounted guidance terminal (100) all includes the gps module (106), that a cpu (101) electrically connected with a described cpu (101)
One input module (103), the first wireless signal transceiver module (102), loudspeaker module (105) and the first display screen (104)；
Described gps module (106) is used for being communicated with satellite, obtains and comprises vehicle position information, speed, vehicle heading
Vehicle data, and described vehicle data is input to a described cpu (101)；
Described first input module (103) is used for receive user and passes through described first display screen (104) or vehicle centre console button
The navigation instruction comprising navigation purpose ground of input, and described navigation instruction is sent to a described cpu (101)；
When a described cpu (101) is used for receiving described vehicle data and described navigation instruction, generate comprise vehicle location and
The driving path inquiry request information on navigation purpose ground；
Described first wireless signal transceiver module (102) is used under the control of a described cpu (101), by described driving road
Footpath inquiry request information is sent to described vehicle monitoring center (200).
9. the intelligent navigation system based on magnanimity vehicle data according to claim 8 it is characterised in that described at least
One vehicle mounted guidance terminal (100) is additionally operable to receive this optimum driving by described first wireless signal transceiver module (102)
Path, and this optimum driving path is shown by described first display screen (104).
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